EP 0118035 B1 19870114 - DRILLING TOOL AND METHOD OF MAKING IT
Title (en)
DRILLING TOOL AND METHOD OF MAKING IT
Publication
Application
Priority
- DE 3304277 A 19830208
- DE 3309860 A 19830318
Abstract (en)
[origin: ES285582U] A drill is described having a metal bit carrier part on which a sintered metal bit is placed. The bit possesses at least one enclosed helical cooling channel which continues in alignment into a corresponding cooling channel in the bit carrier part. This drill is particularly characterized by very great mechanical and thermal stability, which is not adversely affected in any way by the system of cooling channels in the interior of the drill, so that the service life and cutting power of the drill can be greatly increased. These advantages apply both to twist drills proper and to single-lipped deep-hole drills, for which there is the particular advantage that the geometry of the drill head can be optimally adapted to the particular material to be processed.
IPC 1-7
IPC 8 full level
B22F 5/10 (2006.01); B23B 51/06 (2006.01); B23P 15/32 (2006.01)
CPC (source: EP US)
B22F 5/10 (2013.01 - EP US); B23B 51/06 (2013.01 - EP US); B23P 15/32 (2013.01 - EP US); B22F 2005/001 (2013.01 - EP US); B22F 2005/004 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US); Y10T 408/455 (2015.01 - EP US); Y10T 408/78 (2015.01 - EP US); Y10T 408/9097 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0118035 A1 19840912; EP 0118035 B1 19870114; CA 1214055 A 19861118; DE 3309860 A1 19840809; DE 3461994 D1 19870219; ES 285582 U 19851201; ES 285582 Y 19860616; US 4704055 A 19871103
DOCDB simple family (application)
EP 84101069 A 19840202; CA 446924 A 19840207; DE 3309860 A 19830318; DE 3461994 T 19840202; ES 285582 U 19840207; US 57386084 A 19840125